Home / 8,561.16-12,840.84-2,320.74

Finding the Fourth Proportional to 8,561.16, 12,840.84 and 2,320.74

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Solution

The fourth proportional to 8,561.16, 12,840.84 and 2,320.74 is: 3,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.16 : 12,840.84 = 2,320.74 : x
  2. Step 2: Convert to fraction form
    8,561.16/12,840.84 = 2,320.74/x
  3. Step 3: Cross multiply
    8,561.16x = 12,840.84 × 2,320.74
  4. Step 4: Simplify right side
    8,561.16x = 29,800,251.02
  5. Step 5: Solve for x
    x = 29,800,251.02/8,561.16
  6. Step 6: Final answer
    x = 3,480.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.